R03DS0061EJ0200 Rev.2.00

Page 1 of 11

Jul 24, 2013

R2A20135SP

LED Lighting Power Controller

Description

R2A20135 is LED lighting controller IC with dimming function.

High accuracy LED current feed-back system makes more efficient LED performance.

With non-Isolation step-down control makes it possible to reduce external parts and realize high power factor and

efficiency. Moreover, this IC builds in the dimming function and can control many types dimming mode such as Triac,

PWM, and DC dimming.

Switching mode can chosen Zero Current detect Mode or Fixed Frequency Mode according to the required features. By

the Constant On Time control, both modes have power factor correct function.

Zero Current detect Mode is better performance for noise immunity, and Fixed Frequency Mode is for power factor

correction and THD.

Features

• Absolute Maximum Ratings

⎯ Supply voltage Vcc: 24 V

⎯ Operating junction temperature Tjopr: –40 to +150°C

• Electrical characteristics

⎯ UVLO operating start voltage VH: 12 V ± 0.8 V

⎯ UVLO operating shutdown voltage VL: 9.2 V ± 0.7 V

⎯ UVLO hysteresis voltage Hysuvl: 2.8 V ± 0.7 V

• Functions

⎯ Dimming function (Triac, PWM, DC dimming)

⎯ Zero current detection mode (when Rrt is OPEN)

⎯ Fixed frequency mode (when Rrt is connected by GND)

⎯ Adjustable switching frequency (when Rrt is connected by GND)

⎯ Package lineup: Pb-free SOP-8 (JEDEC)

Ordering Information

Part No.

Package Name

Package Code

Package

Abbreviation

Taping Abbreviation

(Quantity)

R2A20135SP#W5

—

PRSP0008DJ-A

SP

W (2,500 pcs/reel)

R03DS0061EJ0200

Rev.2.00

Jul 24, 2013